What capability of the James Webb Space Telescope (JWST) is essential for studying ancient, distant galaxies?

Answer

Infrared capabilities that allow it to penetrate dust and gas clouds

JWST's infrared technology allows it to penetrate obscuring dust and gas clouds to obtain clear spectral data on the stellar populations within extremely distant objects.

What capability of the James Webb Space Telescope (JWST) is essential for studying ancient, distant galaxies?
Spacegalaxiesastronomycosmologydead galaxies